Lepidium didymum

Family:BRASSICACEAE
Species:Lepidium didymum Linnaeus
Common Name:Lesser Swinecress; Wartcress
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:Lesser Swinecress is an introduced winter annual or short-lived biennial in the Mustard family (Brassicaceae). It is native to South America. In Alabama it can be found state wide. Lesser Swinecress occurs in lawns, in gardens, in fallow fields, on roadsides, and in other disturbed areas. It is a winter annual with a tap root. Stems are ascending or decumbent, radiating from a central point. Leaves are basal and cauline. The basal leaves are petiolate, 1 or 2 pinnatisect, and glabrous or pilose. The margins of the lobes are entire or toothed. Basal leaves may be withered by flowering time. Stem leaves are short petiolate or sessile, and similar but smaller than the basal leaves. All parts of the plant have a fetid odor when crushed. Flowers are produced in racemes and are inconspicuous. The sepals are ovate and tardily deciduous. Flowers have 4 small elliptic to linear white petals and 2 stamens. The fruit is a deeply notched indehiscent silicle. Each section of the fruit is orbicular in outline and one seeded. The walls of the fruit are thick and strongly veined.—A. Diamond
Taxonomic Notes:**
Status:Not Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyBRASSICACEAE - Mustard family
Genus Lepidium
Species Lepidium didymum Linnaeus - Lesser Swinecress; Wartcress

Citation

Citation LEPIDIUM DIDYMUM Linnaeus, Mant. Pl. 92. 1767.
Basionym: **
Type: Without data (lectotype: LINN 824.16). Lectotypified by Al-Shehbaz, in R. A. Howard, Fl. Less. Antill., Dicot. 1: 283. 1988.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Carara didyma Carara didyma (Linnaeus) Britton, in Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 2: 167. 1913.BASIONYM: Lepidium didymum Linnaeus 1767. 
Coronopus didymus Coronopus didymus (Linnaeus) Smith, Fl. Brit. 691. 1800.Lepidium didymum Linnaeus 1767. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Baldwin, Barbour, Bullock, Butler, Calhoun, Cherokee, Clay, Coffee, Coosa, Dallas, Escambia, Etowah, Greene, Henry, Houston, Jefferson, Lawrence, Lee, Marengo, Marshall, Mobile, Monroe, Montgomery, Morgan, Pike, Tuscaloosa, Walker

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AMAL, AUA, JSU, SAMF, TROY, UNA, USAM, UWAL

Range of years during which specimens were collected: 2009 - 2009

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
TROY000034961 Butler 22 Apr 2012 Alvin R. Diamond
22963
TROY
Coronopus didymus (Linnaeus) Smith
AUA_ACC018784 Lee 3 APR 1970 KNOTTS, CARL R.
40
AUA
LEPIDIUM DIDYMUM L.
AUA_ACC002407 Lee 17 MAY 1950 BROWN, JAMES M.
AUA
LEPIDIUM DIDYMUM L.
UNA00059154 Tuscaloosa 6 May 2001 D. D. Spaulding
11044
UNA
Coronopus didymus (L.) Sm.
AMAL00019999 Mobile 23 Jun 2013 Howard E. Horne
2282
AMAL
Lepidium didymum L.
TROY000045052 Autauga 14 Mar 2017 Matthew Parker
453
TROY
Lepidium didymum Linnaeus
AUA_ACC066855 Cherokee 27 MAR 2005 SPAULDING, DANIEL D.
12225
AUA
LEPIDIUM DIDYMUM L.
UNA00012302 Tuscaloosa 8 May 1963 Rebecca Deramus
327
UNA
Coronopus didymus (L.) Sm.
AMAL00006072 Coffee 02 Mar 2003 A. R. Diamond
13777
AMAL
Lepidium didymum L.
TROY000039014 Houston 13 Dec 2013 Alvin R. Diamond
24702
TROY
Lepidium didymum Linnaeus
TROY000017006 Coffee 02 Mar 2003 Alvin R. Diamond
13777
TROY
Coronopus didymus (Linnaeus) Smith
UNA00058843 Coosa 11 May 1999 R. Kral
88341
UNA
Coronopus didymus (L.) Sm.
AMAL00006071 Barbour 16 Mar 2002 D. D. Spaulding
11096
AMAL
Lepidium didymum L.
TROY000017005 Barbour 16 Mar 2002 Daniel D. Spaulding
11096
TROY
Coronopus didymus (Linnaeus) Smith
AMAL00021483 Baldwin 25 Mar 2014 Daniel D. Spaulding
13899
AMAL
Lepidium didymum L.
UWAL0018392 Baldwin 29 Mar 1986 Kral, R.
73216
UWAL
Lepidium didymum L.
AMAL00006073 Coosa 11 May 1999 R. Kral
88341
AMAL
Lepidium didymum L.
UWAL0043940 Baldwin 29 Apr 2005 Larsen, H.S.
1435
UWAL
Lepidium didymum L.
USAM000003183 Mobile 20 Mar 1968 Michel G. Lelong
4236.2
USAM
Coronopus didymus (L.) Smith
UWAL0014206 Bullock 01 Jan 2013 Dykes, Bailee
1493
UWAL
Lepidium didymum Linnaeus
USAM000003185 Mobile 10 Apr 1978 Michel G. Lelong
10129
USAM
Coronopus didymus (L.) Smith
UNA00050175 Henry 9 May 1998 John R. MacDonald
11136
UNA
Coronopus didymus (L.) Sm.
AMAL00006074 Tuscaloosa 06 May 2001 D. D. Spaulding
11044
AMAL
Lepidium didymum L.
JSU117071 Marshall 20 May 1974 R. D. Whetstone
2750
JSU
Lepidium didymum Linnaeus
TROY000030937 Lee 20 May 1949 H.B. Cunningham
s.n.
TROY
Coronopus didymus (Linnaeus) Smith
TROY000017747 Escambia 29 Mar 1980 Robert Kral
66784
TROY
Coronopus didymus (Linnaeus) Smith
UWAL0039000 Walker 20 Mar 2019 England, J. Kevin
9960
UWAL
Lepidium didymum Linnaeus
JSU117074 Morgan 15 Mar 1999 D. D. Spaulding
10553
JSU
Lepidium didymum Linnaeus
UWAL0003096 Escambia 06 Mar 2011 Keener, Brian R.
6319
UWAL
Lepidium didymum L.
JSU117072 Mobile 2 Jun 1972 R. Kral
47135
JSU
Lepidium didymum Linnaeus
UWAL0013127 Montgomery 10 Feb 2013 Diamond, Alvin R.
23732
UWAL
Lepidium didymum Linnaeus
AUA_ACC012586 Clay 15 MAY 1966 KNOWLES, RONALD
AUA
LEPIDIUM DIDYMUM L.
TROY000038524 Bullock 01 Jan 2013 Bailee Dykes
1493
TROY
Lepidium didymum Linnaeus
JSU117066 Etowah 20 Mar 1994 L. M. Hodge
770
JSU
Lepidium didymum Linnaeus
AUA_ACC035511 Lee 22 APR 1971 DONOVAN, LOIS A.
179
AUA
LEPIDIUM DIDYMUM L.
TROY000032175 Marengo 10 Apr 2009 J. Kevin England
1897
TROY
Coronopus didymus (Linnaeus) Smith
UNA00012303 Tuscaloosa 8 May 1963 Rebecca Deramus
327
UNA
Coronopus didymus (L.) Sm.
AUA_ACC004935 Lee 5 APR 1964 CREEL, JOHN
AUA
CORONOPUS DIDYMUS (L.) SM.
TROY000033758 Escambia 06 Mar 2011 Brian R. Keener
6319
TROY
Coronopus didymus (L.) Sm.
AMAL00011637 Cherokee 27 Mar 2005 Daniel D. Spaulding
12225
AMAL
Lepidium didymum L.
USAM000003184 Mobile 23 Mar 1976 Michel G. Lelong
9020
USAM
Coronopus didymus (L.) Smith
AUA_ACC042603 Lee 29 JUN 1972 HYBART, MICHAEL G.
91
AUA
LEPIDIUM DIDYMUM L.
TROY000017167 Cherokee 27 Mar 2005 Daniel D. Spaulding
12225
TROY
Coronopus didymus (Linnaeus) Smith
UNA00059104 Barbour 16 Mar 2002 D. D. Spaulding
11096
UNA
Coronopus didymus (L.) Sm.
UWAL0017042 Baldwin 25 Mar 2014 Spaulding, Dan
13899
UWAL
Lepidium didymum L.
UWAL0043941 Baldwin 22 May 2007 Larsen, H.S.
1590
UWAL
Lepidium didymum L.
UWAL0013206 Lawrence 03 Mar 2012 England, J. Kevin
3230
UWAL
Lepidium didymum Linnaeus
AMAL00020567 Tuscaloosa 14 Jun 2011 Brian R. Keener
6508
AMAL
Lepidium didymum Linnaeus
AUA000030710 Escambia 10 Feb 2010 HANSEN, CURTIS J.
4590
AUA
LEPIDIUM DIDYMUM
UWAL0035178 Morgan 04 Mar 2017 England, J. Kevin
7174
UWAL
Lepidium didymum Linnaeus
USAM000003182 Mobile 26 May 1979 Michel G. Lelong
10817
USAM
Coronopus didymus (L.) Smith
AUA_ACC072200 Escambia 6 MAR 2011 KEENER, BRIAN R.
6319
AUA
LEPIDIUM DIDYMUM L.
AMAL00020116 Dallas 28 Mar 2011 T. Wayne Barger
OC-619
AMAL
Lepidium didymum L.
UNA00065661 Cherokee 27 Mar 2005 D. D. Spaulding
12225
UNA
Coronopus didymus (L.) Sm.
TROY000017009 Pike 27 Apr 2008 Alvin R. Diamond
19073
TROY
Coronopus didymus (Linnaeus) Smith
AUA_ACC052406 Pike 28 MAR 1994 DIAMOND, JR., ALVIN R.
9033
AUA
LEPIDIUM DIDYMUM L.
UNA00012309 Tuscaloosa 8 May 1963 Rebecca Deramus
327
UNA
Coronopus didymus (L.) Sm.
TROY000017007 Monroe 04 Mar 2007 Brian R. Keener
3346
TROY
Coronopus didymus (Linnaeus) Smith
TROY000037143 Montgomery 10 Feb 2013 Alvin R. Diamond
23732
TROY
Lepidium didymum Linnaeus
TROY000017008 Pike 02 Mar 2001 Alvin R. Diamond
s.n.
TROY
Coronopus didymus (Linnaeus) Smith
UWAL0013531 Pike 13 Dec 2012 Diamond, Alvin R.
23588
UWAL
Lepidium didymum Linnaeus
AUA_ACC012206 Lee 7 APR 1965 KOELLING, ALFRED C.
2118
AUA
LEPIDIUM DIDYMUM L.
UNA00012307 Greene 17 Mar 1967 Joab L. Thomas
T 927
UNA
Coronopus didymus (L.) Sm.
JSU117068 Calhoun 2 May 1966 R. Berby
s.n.
JSU
Lepidium didymum Linnaeus
AUA_ACC002409 Lee 1 MAY 1952 SHERRER, JACK D.
AUA
LEPIDIUM DIDYMUM L.
UWAL0001618 Marengo 10 Apr 2009 England, J. Kevin
1897
UWAL
Lepidium didymum L.
UNA00027107 Escambia 13 Mar 1988 Robert R. Haynes
9269
UNA
Coronopus didymus (L.) Sm.
UNA00012301 Mobile _ Apr _ Charles Mohr
s.n.
UNA
Coronopus didymus (L.) Sm.
AUA_ACC002408 Lee 20 MAY 1949 CUNNINGHAM, HUGH B.
AUA
LEPIDIUM DIDYMUM L.
UWAL0008207 Monroe 04 Mar 2007 Keener, Brian R.
3346
UWAL
Lepidium didymum L.
AUA_ACC062764 Coffee 2 MAR 2003 DIAMOND, JR., ALVIN R.
13777
AUA
LEPIDIUM DIDYMUM L.
UWAL0016112 Houston 13 Dec 2013 Diamond, Alvin R.
24702
UWAL
Lepidium didymum Linnaeus
AUA_ACC056390 Mobile 2 JUN 1972 KRAL, ROBERT
47135
AUA
LEPIDIUM DIDYMUM L.
JSU117070 Marshall 20 May 1974 R. D. Whetstone
2750
JSU
Lepidium didymum Linnaeus
TROY000046100 Tuscaloosa 14 Jun 2011 Brian R. Keener
6508
TROY
Lepidium didymum Linnaeus
UWAL0011757 Tuscaloosa 14 Jun 2011 Keener, Brian R.
6508
UWAL
Lepidium didymum Linnaeus
JSU117073 Montgomery 31 Mar 1983 R. D. Whetstone
12932
JSU
Lepidium didymum Linnaeus
JSU117067 Calhoun 28 Jul 1986 C. L. Lawler
805
JSU
Lepidium didymum Linnaeus
AUA_ACC044304 Montgomery 14 MAY 1986 DIAMOND, JR., ALVIN R.
2503
AUA
LEPIDIUM DIDYMUM L.
UWAL0003097 Escambia 06 Mar 2011 Keener, Brian R.
6316
UWAL
Lepidium didymum L.
JSU117069 Coosa 11 May 1999 R. Kral
88341
JSU
Lepidium didymum Linnaeus
SAMF0003455 Jefferson 21 Mar 2011 Davenport, L. J.
4608
SAMF
Lepidium didymum Linnaeus
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